211012222122020 has 48 divisors (see below), whose sum is σ = 487687781000448. Its totient is φ = 76052675381760.

The previous prime is 211012222121999. The next prime is 211012222122041. The reversal of 211012222122020 is 20221222210112.

It is an interprime number because it is at equal distance from previous prime (211012222121999) and next prime (211012222122041).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 211012222121983 and 211012222122001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4243986044 + ... + 4244035763.

It is an arithmetic number, because the mean of its divisors is an integer number (10160162104176).

Almost surely, 2^{211012222122020} is an apocalyptic number.

211012222122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211012222122020 is an abundant number, since it is smaller than the sum of its proper divisors (276675558878428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211012222122020 is a wasteful number, since it uses less digits than its factorization.

211012222122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8488021940 (or 8488021938 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 211012222122020 its reverse (20221222210112), we get a palindrome (231233444332132).

The spelling of 211012222122020 in words is "two hundred eleven trillion, twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, twenty".